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The F-35 Fighter’s 2 Big Problems That Won’t Go Away

Key Points and Summary - The F-35 program is under intense pressure due to severe problems with its critical Block 4 modernization. -The new TR-3 hardware, the foundation for the upgrade, is late, ...
Defense One

F-35 engine upgrade hits delay, casting doubt on timeline

PARIS—A key milestone for the Pentagon’s program to upgrade the F-35 engine has been pushed back a year, raising questions about the overall timeline of the effort. The engine upgrade will reach ...
Defense One

USAF won’t resume full F-35 buys until Lockheed wrings problems from upgrade: service chief

ROYAL AIR FORCE FAIRFORD, England—Lockheed Martin needs to make progress on a host of delayed upgrades to the F-35 fighter jet before the Pentagon will return to buying the jet in planned levels, the ...
American Machinist

Pentagon Issues $670M for F-35 Engine Spares

The U.S. Dept. of Defense awarded $670.2-million to Pratt & Whitney, for procuring components and materials needed for manufacturing F135 propulsion systems. This award follows a $2.8-billion contract ...
The Aviationist on MSN

Reports Suggest F-35s Are Being Delivered Without Radar Amid APG-85 Delays

According to reports, U.S. F-35 might have been delivered since June 2025 with a ballast in place of the new APG-85 radar which has been suffering from delays. Recent reports indicate that a number of ...
St. Louis Post-Dispatch

U.S. watchdog finds quality violations in Pratt work on F-35 engine

This Monday, Nov. 3, 2014 photo provided by the US Navy shows an F-35C Joint Strike Fighter conducts an approach on the aircraft carrier USS Nimitz, 40 miles off San Diego, Calif. The Navy has ...
The Aviationist

Pratt & Whitney Awarded $2.8B Contract for New Lot 18 F-35 Engines

The $2.8B contract funds 141 F135 engines for U.S. services and allies, securing production, spares, and upgrades through February 2028. Pratt & Whitney has been awarded a major contract, valued at ...